External Earpiece Failure - Nokia RH-6 Series Baseband Description & Troubleshooting

CCS Technical Documentation

External earpiece failure

Audio Faults 3
Is Ext ear working?
Yes
Is Ext-m ic working
Yes
Audio Faults 4
Issue 1 10/2003
Company Confidential
Set Phoenix LOCAL m ode.
No
Select Maintenace ->
audio test. Set EXt in IHF/
EXT out ON.
Set Phoenix LOCAL
No
m ode. Select Maintenace
-> audio test. Set EXt in
IHF/EXT out ON.
Measure DC volts on
m ic pins of connector.
Is it ~2.1VDC to
GND?
Yes
© 2003 Nokia Corporation.
6 - BB Description & Troubleshooting
volts on speaker pins
of connector. Are they
~0.8VDC to GND?
No
RH-6
Change UEM
Yes
Measure DC
No
Check L103,
RC109, C111,
R105,C157,C156,C
181,C182,
X101,lines. If OK
change UEM
Check
R173,C150,C176,C
184,R158,
R171,L102,C107,C
108,X101,line. If ok
change UEM.
check
R169,R162,C170,C
166,C173, C174,
lines. If ok change
UEM
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